#!/usr/bin/env python
# -*- coding: utf-8 -*-
# --------------------------------------
#Author:  LJ
#Email:   admin@attacker.club

#Last Modified: 2018-03-30 12:19:50
#Description: 
# --------------------------------------
f = open('../yesterday.txt')
f_new =open ('../yesterday.txt.back','w')

for line in f:
    if '我会跟歌声一起歌唱' in line:
        line = line.replace('我会跟歌声一起歌唱','我只听听')
    f_new.write(line)
f.close()
f_new.close()
